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Environment Ecology English RAS/RTS (Pre) 2013

Q621.Which of the following is not a biotic component of an ecosystem?

AAir BPlant CBacteria DAnimals

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Environment Ecology English UP UDA/LDA (Pre) 2002

Q622.The highest trophic level in an ecosystem is obtained by

AHerbivores BCarnivores COmnivores DDecomposers

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Environment Ecology English UPRO/ARO (Pre) 2014

Q623.Which of the following is an act that disturbs the ecological balance?

ALumbering BSocial forestry CVanamahotsav DAfforestation

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Environment Ecology English RAS/RTS (Pre) 2012

Q624.Which one of the following is one of the main causes of ecological imbalance in India?

ADeforestation BDesertification CFloods and Famines DRainfall variations

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Environment Ecology English UP UDA/LDA (Pre) 2013

Q625.Which of the following does not help to maintain ecological balance?

ACutting forest BAfforestation CRainwater Management DBiosphere Reserves

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Environment Ecology English UPPCS (Pre) 2014

Q626.Which one of the following is the largest ecosystem of the world?

AOcean BGrassland CForest DMountains

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Environment Ecology English Telangana PSC (Pre) 2019 UP Lower Sub. (Spl)(Pre) 2003

Q627.Which one of the following ecosystems covers the largest area of the earth’s surface?

ADesert Ecosystem BGrassland Ecosystem CMountain Ecosystem DMarine Ecosystem

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Environment Ecology English Karnataka PSC (Pre) 2017 IAS (Pre) 2013

Q628.Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?

AEcotone BEcological niche CHabitat DHome range

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Environment Ecology English Uttarakhand PCS (Pre) 2012

Q629.The number of organisms that can be supported by the environment in a given area is known as

APopulation BCarrying Capacity CPyramid of number or biomass DNone of the above

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Environment Ecology English UPPCS (Pre) 2016

Q630.Which of the following is an artificial ecosystem?

ARice field BForest CGrassland DLake

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Environment Ecology English Tamil Nadu PSC (Pre) 2019 Uttarakhand PCS (Pre) 2005

Q631.The term Ecosystem was proposed by

AG. Tailor BE. Hartigan CD.R. Stoddart DTansley

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Environment Ecology English UPRO/ARO (Pre) 2014

Q632.‘Ecology’ is the study of relationship between

AOrganism and environment BMan and forest CSoil and water DHusband and wife

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Environment Ecology English IAS (Pre) 2015

Q633.Which one of the following is the best description of the term ‘ecosystem’?

AA community of organisms interacting with one another BThat part of the Earth which is inhabited by living organisms CA community of organisms together with the environment in which they live DFlora and fauna of a geographical area

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Environment Ecology English UPPCS (Mains) 2014

Q634.Which of the following is not true about the ecosystem?

AIt represents all living organisms and physical environment in any given space-time unit BIt is a functional unit CIt has own productivity DIt is a closed system

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Environment Ecology English IAS (Pre) 2014, 11

Q635.Consider the following. 1. Photosynthesis 2. Respiration 3. Decay of organic matter 4. Volcanic action Which of the above add carbon dioxide to the carbon cycle on Earth?

A1 and 4 B2 and 3 C2, 3 and 4 D1, 2, 3 and 4

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Environment Ecology English Karnataka PSC (Pre) 2019 UPPCS (Pre) 2009

Q636.Given below are two statements. Assertion (A): Natural vegetation is the true index of climate. Reason (R): Water-loving plants are found in a moist climate. In the context of the above, which one of the following is correct? Code

ABoth (A) and (R) are true and (R) is the correct explanation of BBoth (A) and (R) are true, but (R) is not the correct explanation of (A) C(A) is true, but (R) is false D(A) is false, but (R) is true

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Environment Ecology English Andhra Pradesh PSC (Pre) 2019 UPPCS (Spl)(Mains) 2004

Q637.Which of the following is related with Protection of Ecological Balance? 1. Forest Policy 2. Environment Protection Act 3. Industrial Policy 4. Educational Policy Select the correct answer using the code given below.

A1 and 2 B2 and 3 C1, 2 and 3 DAll of these

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Environment Ecology English IAS (Pre) 2016

Q638.With reference to ‘Agenda 21’, sometimes seen in the news, consider the following statements. 1. It is a global action plan for sustainable development. 2. It originated in the World Summit on Sustainable Development held in Johannesburg in 2002. Which of the following statements given above is/are correct?

AOnly 1 BOnly 2 CBoth 1 and 2 DNeither 1 nor 2

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Environment Ecology English IAS (Pre) 2016

Q639.Consider the following statements. 1. The Sustainable Development Goals were first proposed in 1972 by a global think tank called the ‘Club of Rome’. 2. The Sustainable Development Goals have to be achieved by 2030. Which of the statements given above is/are correct?

AOnly 1 BOnly 2 CBoth 1 and 2 DNeither 1 nor 2

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Environment Ecology English IAS (Pre) 2012

Q640.The National Green Tribunal Act, 2010 was enacted in consonance with which of the following provisions of the Constitution of India? 1. Right to a healthy environment, construed as a part of Right to Life under Article 21. 2. Provision of grants for raising the level of administration in the Scheduled Areas for the welfare of Scheduled Tribes under Article 275(1). 3. Powers and functions of Gram Sabha as mentioned under Article 243(A). Select the correct answer using the codes given below.

AOnly 1 B2 and 3 C1 and 3 D1, 2 and 3

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